Improvement in catarrhal syringes



UNITED STATES PATENT OFFICE..

IMPROVEMENT IN CATARRHAL SYRINGES.

Specification forming part of Letters Patent No. 50,722, dated October 31, 1865.

To all whom it may concern:

Be it known that I, AUGUSTUS PoNHAM LIGHTHILL, of Boston, in the county of Suffolk and State ofMassachusetts, haveinvented a new and useful Improvement in Catarrhal Syringes; and I do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, ot' which- Figure 1 denotes a side View, Fig. 2 a front elevation, Fig. 3 a top view, and Fig. 4 a longitudinal section, ot'thejet-tube and the foraminous nose or bulb ot' a catarrhal syringe, my invention having specialrei'erence to suoli parts only. Fig. 5 is a horizontal section ot' the bulb.

Prior to my invention it has been common to construct ot' a spherical form the spray-bulb of acatarrhal syringe. Instead ot soconstructingit, I make it elliptical, or thereabout,in its longitudinal as well as in its transverse section, the same being as shown in the drawings, in whicha denotes the bulb, and b the stem or jettube, on whose extremity the said bulb is fixed. The bulb is hollow or chambered and foraminous, and opens into the bore of the jet-tube.

Instead of curving the jettube in the ordinary way, I give to it a sudden bend, c, close to its junction with the bulb, and so that the axis of the bulb may stand at very nearly a right angle to that ofthe straight part ot' the tube, the same being as shown in the drawings.

By reason ot' the peculiar shape of the dat bulb, which may be said to be formed of two concavo-convex elliptical disks connected together at their edges, and being arranged with respect to the tube as shown in the drawings. Such bulb will enter the passage leading from the throat to the nose of the patient to much better advantage than will a spherical bulb, and, besides, by my arrangement of the bulb or formation ofthe stem with a sudden bend, c, so as to bring the bulb close to the straight part ot' the stem, the bulb can be easily inserted in the mouth ot' the passage without contact of the stein with the back part of the tongue of the patient.

The great difculty experienced in thc use ofthe common syringe, whose stem has a long curve or bend between its straight part and the bulb, is the almost unavoidable contact of this bend with the back of the tongue of the patient while the operator is in the act of introducing the bulb to the nasal passage for the purpose ot` injecting a uid therein. As most persons are very sensitive to any such touching of the 'back part otthe tongue, it being productive ot' more or less instantaneous muscular action ot' the throat and stomachan action which is ot'ten a serious impediment to the operator-the advantage ot' my improved form of bulb and thejet-tube will be apparent.

The difference between my improved bulb and stem and -those heretofore in common use for catarrbal syringes will be seen by comparing it with Fig.6, which is au illustration of' the common bulb and stem.

What, therefore, I claim as my invention is l. The construction ot' the bulb a, elliptical or oval in its longitudinal and transverse sections.

2. The improved arrangement ot' the bulb and its stein, or the construction of the latter with the sudden bend atitsjunction with the bulb, whereby the axes ot' the bulb and stem are caused to be at or nearly a right angle to each other, as represented.

A. P. LIGHTH ILL.

Witnesses:

It. H. EDDY, F. P. HALE, J r.

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